Journal: Anatolian Journal of Cardiology

Article Title: Evaluation of Spandan Smartphone-Based Electrocardiogram for Arrhythmia Detection: A Cross-Sectional Study in a Large Patient Cohort

doi: 10.14744/AnatolJCardiol.2025.4853

Figure Lengend Snippet: Spandan portable electrocardiogram, developed by Sunfox Technologies Pvt. Ltd., is a smartphone-based portable ECG device capable of taking lead II and also 12 lead ECGs by using derived ECG methods to evaluate cardiac arrhythmias.

Article Snippet: The use of the AliveCor Kardia smartphone ECG device was demonstrated by Jewson et al for diagnosing exercise-related arrhythmias in athletes, with their obtained ECG traces during highly vigorous exercise, where traditional monitors would fail.

Techniques: Derivative Assay

Journal: Anatolian Journal of Cardiology

Article Title: Evaluation of Spandan Smartphone-Based Electrocardiogram for Arrhythmia Detection: A Cross-Sectional Study in a Large Patient Cohort

doi: 10.14744/AnatolJCardiol.2025.4853

Figure Lengend Snippet: Gold Standard ECG: Patient showing atrial fibrillation as interpreted by computerized analysis of only lead II ECG strip from the gold standard ECG machine.

Article Snippet: The use of the AliveCor Kardia smartphone ECG device was demonstrated by Jewson et al for diagnosing exercise-related arrhythmias in athletes, with their obtained ECG traces during highly vigorous exercise, where traditional monitors would fail.

Techniques: Stripping Membranes

Journal: Anatolian Journal of Cardiology

Article Title: Evaluation of Spandan Smartphone-Based Electrocardiogram for Arrhythmia Detection: A Cross-Sectional Study in a Large Patient Cohort

doi: 10.14744/AnatolJCardiol.2025.4853

Figure Lengend Snippet: Spandan ECG: Patient depicting atrial fibrillation as interpreted by computerized analysis of Spandan.

Article Snippet: The use of the AliveCor Kardia smartphone ECG device was demonstrated by Jewson et al for diagnosing exercise-related arrhythmias in athletes, with their obtained ECG traces during highly vigorous exercise, where traditional monitors would fail.

Techniques:

Journal: Anatolian Journal of Cardiology

Article Title: Evaluation of Spandan Smartphone-Based Electrocardiogram for Arrhythmia Detection: A Cross-Sectional Study in a Large Patient Cohort

doi: 10.14744/AnatolJCardiol.2025.4853

Figure Lengend Snippet: Validation parameters: Specificity, senstivity, negative predictive value, and positive predictive value of Spandan lead II ECG and gold standard.

Article Snippet: The use of the AliveCor Kardia smartphone ECG device was demonstrated by Jewson et al for diagnosing exercise-related arrhythmias in athletes, with their obtained ECG traces during highly vigorous exercise, where traditional monitors would fail.

Techniques: Biomarker Discovery

Journal: Anatolian Journal of Cardiology

Article Title: Evaluation of Spandan Smartphone-Based Electrocardiogram for Arrhythmia Detection: A Cross-Sectional Study in a Large Patient Cohort

doi: 10.14744/AnatolJCardiol.2025.4853

Figure Lengend Snippet: Parameters: Accuracy and precision of Spandan lead II ECG and gold standard ECG.

Article Snippet: The use of the AliveCor Kardia smartphone ECG device was demonstrated by Jewson et al for diagnosing exercise-related arrhythmias in athletes, with their obtained ECG traces during highly vigorous exercise, where traditional monitors would fail.

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Status of cardiac arrest patients in Japan (fiscal year 2018). ECG, electrocardiogram; VF, ventricular fibrillation; VT, ventricular tachycardia. (Modified from Ministry of Internal Affairs and Communications Fire and Disaster Management Agency 2019. 13 )

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Modification

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for Arrhythmia Diagnosis and Risk Assessment With ECG

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Non‐loop event recorder. The right electrode is held between the fingers of the right hand, while the main unit is held in the left hand, and an I‐lead ECG records for a few dozen seconds. An II‐lead ECG recording can be made by holding the right electrode between the fingers of the right hand and holding the main unit against the lower left abdomen. Data are managed via an application on a computer, and diagnosis is made based on these data. ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: ECG recording using a smartwatch. Electrodes are located on the back of the watch and on the bezel or the strap. An I‐lead ECG can be recorded for 30 s by touching the electrodes with the opposite hand. A PDF version of the ECG can be checked on a paired smartphone application. ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: ECG recording using a necklace electrocardiograph. This necklace‐type device has an ECG built into the top of the pendant that can record for 30 s. The ECG data are uploaded to the cloud from a smartphone application for diagnosis (unapproved medical device). ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: ECG recording using a wearable electrocardiograph. Wearable electrodes are sewn into the inside of a T‐shirt, and ECGs are recorded over a long period of time by attaching a miniature electrograph to the electrode. Data are uploaded to a mobile digital terminal or the cloud for diagnosis (clothing‐type electrodes are not approved as medical devices). ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: ECG recording using a dedicated external ECG recording device. An I‐lead ECG can be recorded for 30 s by placing the fingers of both hands on the dedicated external ECG recording device. A PDF version of the ECG can be checked on a smartphone application (unapproved medical device). BPM, beats/min; ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence Related to Arrhythmia Diagnosis and Risk Assessment With an Electrophysiological Study

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery, Blocking Assay, Activity Assay

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: A representative SAECG, showing ventricular LP (arrow) in the terminal QRS. fQRS, filtered QRS duration; LAS40, duration of the low‐amplitude signals <40 μV in the terminal filtered QRS; RMS40, root mean square voltage of the terminal 40 ms in filtered QRS; SAECG, signal‐averaged electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for Genetic Testing for Arrhythmia Patients

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Blocking Assay, Mutagenesis

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence Related to Diagnosis of Sick Sinus Syndrome

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Classification of SSS on ECG. (A) Type I (sinus bradycardia), (B) Type II (sinus arrest), (C) Type II (sinoatrial block), (D) Type III (bradycardia‐tachycardia syndrome). ECG, electrocardiogram; SSS, sick sinus syndrome.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Blocking Assay

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for the Diagnosis of Atrioventricular Block

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery, Blocking Assay, Diagnostic Assay, Imaging

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: ECG examples of AV block. (A) 1st‐degree AV block, (B) Wenckebach AV block (Mobitz type I), (C) Mobitz type II AV block, (D) 2 : 1 AV block, (E) Paroxysmal AV block, (F) Advanced AV block, (G) 3rd‐degree AV block (complete AV block). AV, atrioventricular; ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Blocking Assay

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Representative ECG of AVNRT (accessory pathway in the posterior wall of left atrium). AVNRT, atrioventricular reentrant tachycardia; ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Characteristics of each device used for screening and diagnosis of AF. AF, atrial fibrillation; ECG, electrocardiogram; ILR, implantable loop recorder.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Representative ECG of AFL. AFL, atrial flutter; ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for the Diagnosis of Paroxysmal Supraventricular Tachycardia

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Representative ECG of AVNRT (slow–fast type). AVNRT, atrioventricular reentrant tachycardia; ECG, electrocardiogram; HR, heart rate.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence Related to the diagnosis of Atrial Fibrillation

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Representative ECG example of VF. ECG, electrocardiogram; VF, ventricular fibrillation.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Diagnostic algorithm for ventricular fibrillation, pulseless ventricular tachycardia, PEA, and asystole. ACEI, angiotensin‐converting enzyme inhibitor; ACh, acetylcholine; AF, atrial fibrillation; AFL, atrial flutter; ARB, angiotensin II receptor blocker; ARNI, angiotensin receptor neprilysin inhibitor; ARVC, arrhythmogenic right ventricular cardiomyopathy; AVB, atrioventricular block; CAG, coronary angiography; CLBBB, complete left bundle branch block; CPR, cardiopulmonary resuscitation; CPVT, catecholaminergic polymorphic ventricular tachycardia; CT, computed tomography; DCM, dilated cardiomyopathy; DVT, deep vein thrombosis; ECG, electrocardiogram; ERS, early repolarization syndrome; HCM, hypertrophic cardiomyopathy; ICD, implantable cardioverter defibrillator; IHD, ischemic heart disease; ILR, implantable loop recorder; LQTS, long QT syndrome; MRB, mineralocorticoid receptor blocker; MRI, magnetic resonance imaging; OMI, old myocardial infarction; PEA, pulseless electrical activity; PE, pulmonary embolism; PMK, pacemaker; RCM, restrictive cardiomyopathy; ROSC, return of spontaneous circulation; SCIVF, short‐coupled idiopathic ventricular fibrillation; SGLT‐2, sodium‐glucose transport protein 2; SQTS, short QT syndrome; SSS, sick sinus syndrome; TdP, torsade de pointes; VF, ventricular fibrillation; VT, ventricular tachycardia; WPW, Wolff‐Parkinson‐White.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Diagnostic Assay, Blocking Assay, Computed Tomography, Magnetic Resonance Imaging, Activity Assay

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Representative ECG of TdP. ECG, electrocardiogram; TdP, torsade de pointes.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for the Diagnosis of Congenital Long QT Syndrome

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Representative ECGs of LQTS. ECG, electrocardiogram; LQTS, long QT syndrome.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Flowchart of testing when ER pattern is found on ECG. ECG, electrocardiogram; ER, early repolarization; ICD, implantable cardioverter defibrillator; ILR, implantable loop recorder; VF, ventricular fibrillation; VT, ventricular tachycardia.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Flowchart of testing when Brugada syndrome is diagnosed based on ECG findings. ECG, electrocardiogram; EPS, electrophysiological study; ICD, implantable cardioverter defibrillator; LP, late potential; TWA, T‐wave alternans; VF, ventricular fibrillation; VT, ventricular tachycardia.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques:

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Representative ECGs of ARVC/ACM. Epsilon wave (arrowhead) and inverted T‐wave (*) of incomplete right bundle block (QRS amplitude, 110 ms). ACM, arrhythmogenic cardiomyopathy; ARVC, arrhythmogenic right ventricular cardiomyopathy; ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Blocking Assay

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for the Diagnosis of Catecholaminergic Polymorphic Ventricular Tachycardia

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery, Diagnostic Assay, Imaging

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for the Diagnosis and Risk Assessment of ARVC/ACM

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Modified Task Force Criteria for ARVC – Diagnostic Categories Major and Minor Criteria

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Modification, Diagnostic Assay, Activation Assay, Mutagenesis

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: LBBB + VT with superior axis, (A) ECG; (B) cardiac MRI; (C) Echocardiography. In VT; the QRS is inverted in the inferior lead. Gadolinium‐enhanced cardiac MRI shows LGE on the anterior wall of the RV and posterior wall of the interventricular septum (arrows). Echocardiography also shows enlargement of the RV and decreased wall motion. ECG, electrocardiogram; LBBB, left bundle branch block; LGE, late gadolinium enhancement; LV, left ventricle; MRI, magnetic resonance imaging; RV, right ventricle; VT, ventricular tachycardia.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Blocking Assay, Magnetic Resonance Imaging

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for the Diagnosis AND Risk Assessment of Brugada Syndrome by Electrophysiology Study

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Diagnostic flowchart for syncope. ECG, electrocardiogram.

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Diagnostic Assay

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for the Diagnosis of Syncope

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery, Blocking Assay, Dissection

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Findings of the Risks of Cardiogenic Syncope

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Blocking Assay

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence Related to the Diagnosis of Cryptogenic Stroke

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery, Diffusion-based Assay, Imaging

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Diagnostic flowchart for patients with suspected cerebral infarction and indications for an ILR. AF, atrial fibrillation; CT, computed tomography; ECG, electrocardiogram; ILR, implantable loop recorder; MRI, magnetic resonance imaging; TEE, transesophageal echocardiography. (Modified from Nielsen JC, et al. 2020. 133 ©2020 European Heart Rhythm Association; Asia Pacific Heart Rhythm Society; Heart Rhythm Society and Latin American Heart Rhythm Society.)

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Diagnostic Assay, Computed Tomography, Magnetic Resonance Imaging, Modification

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet:

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery, Imaging

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Risk Score and Diagnostic Criteria for Congenital Long QT Syndrome

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Diagnostic Assay

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Class of Recommendation and Level of Evidence for the Diagnosis of Brugada Syndrome in Resuscitation Cases After Unexplained Cardiac Arrest

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Biomarker Discovery

Journal: Journal of Arrhythmia

Article Title: JCS / JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia

doi: 10.1002/joa3.13052

Figure Lengend Snippet: Diagnostic Criteria for ER and ERS

Article Snippet: Mounting the device on beds in nursing care facilities is expected to be useful for watching over users. . 3.6.6 Smartphones, Smartwatches Using a smartphone and an external dedicated ECG recording device to record I‐lead ECGs makes it possible to check the ECG in PDF format on a paired smartphone application (AliveCor, Appendix 1 : Figure 40 ).97, 98 The smartwatch has electrodes on its back, bezel, or strap, and touching these areas enables the I‐lead ECG to record data (Appendix 1 : Figure 37 ).

Techniques: Diagnostic Assay, Biomarker Discovery

Journal: Singapore Medical Journal

Article Title: Use of wearable technology in cardiac monitoring after cryptogenic stroke or embolic stroke of undetermined source: a systematic review

doi: 10.4103/singaporemedj.SMJ-2022-143

Figure Lengend Snippet: Characteristics of the included studies.

Article Snippet: [ ] A multicentre, open-label RCT on patients aged ≥55 years with ischaemic stroke or TIA in the past 12 months found that 30-day smartphone ECG monitoring with KardiaMobile (AliveCor) showed an absolute difference of 7.5% in AF detection ( P = 0.024) compared to 24-h Holter monitoring.

Techniques: Comparison, Software, Transmission Assay

Journal: Singapore Medical Journal

Article Title: Use of wearable technology in cardiac monitoring after cryptogenic stroke or embolic stroke of undetermined source: a systematic review

doi: 10.4103/singaporemedj.SMJ-2022-143

Figure Lengend Snippet: Details of wearable devices used in post-cryptogenic stroke monitoring.

Article Snippet: [ ] A multicentre, open-label RCT on patients aged ≥55 years with ischaemic stroke or TIA in the past 12 months found that 30-day smartphone ECG monitoring with KardiaMobile (AliveCor) showed an absolute difference of 7.5% in AF detection ( P = 0.024) compared to 24-h Holter monitoring.

Techniques: Transmission Assay